CS-ToF: High-resolution compressive time-of-flight imaging
dc.citation.firstpage | 31096 | |
dc.citation.issueNumber | 25 | |
dc.citation.journalTitle | Optics Express | |
dc.citation.lastpage | 31110 | |
dc.citation.volumeNumber | 25 | |
dc.contributor.author | Li, Fengqiang | |
dc.contributor.author | Chen, Huaijin | |
dc.contributor.author | Pediredla, Adithya | |
dc.contributor.author | Yeh, Chiakai | |
dc.contributor.author | He, Kuan | |
dc.contributor.author | Veeraraghavan, Ashok | |
dc.contributor.author | Cossairt, Oliver | |
dc.date.accessioned | 2018-07-02T18:19:42Z | |
dc.date.available | 2018-07-02T18:19:42Z | |
dc.date.issued | 2017 | |
dc.description.abstract | Three-dimensional imaging using Time-of-flight (ToF) sensors is rapidly gaining widespread adoption in many applications due to their cost effectiveness, simplicity, and compact size. However, the current generation of ToF cameras suffers from low spatial resolution due to physical fabrication limitations. In this paper, we propose CS-ToF, an imaging architecture to achieve high spatial resolution ToF imaging via optical multiplexing and compressive sensing. Our approach is based on the observation that, while depth is non-linearly related to ToF pixel measurements, a phasor representation of captured images results in a linear image formation model. We utilize this property to develop a CS-based technique that is used to recover high resolution 3D images. Based on the proposed architecture, we developed a prototype 1-megapixel compressive ToF camera that achieves as much as 4× improvement in spatial resolution and 3× improvement for natural scenes. We believe that our proposed CS-ToF architecture provides a simple and low-cost solution to improve the spatial resolution of ToF and related sensors. | |
dc.identifier.citation | Li, Fengqiang, Chen, Huaijin, Pediredla, Adithya, et al.. "CS-ToF: High-resolution compressive time-of-flight imaging." <i>Optics Express,</i> 25, no. 25 (2017) Optical Society of America: 31096-31110. https://doi.org/10.1364/OE.25.031096. | |
dc.identifier.doi | https://doi.org/10.1364/OE.25.031096 | |
dc.identifier.uri | https://hdl.handle.net/1911/102328 | |
dc.language.iso | eng | |
dc.publisher | Optical Society of America | |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | |
dc.title | CS-ToF: High-resolution compressive time-of-flight imaging | |
dc.type | Journal article | |
dc.type.dcmi | Text | |
dc.type.publication | publisher version |
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